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CCNA stands for Cisco Certified Network Associate, a certification for networking professionals. A router is a networking device that forwards data packets between computer networks.
CCNA is a certification offered by Cisco for networking professionals
It covers topics such as network fundamentals, LAN switching technologies, routing technologies, and more
A router is a networking device that forwards data packets between...
I applied via Company Website and was interviewed in Apr 2022. There were 3 interview rounds.
What people are saying about HCLTech
I applied via Campus Placement and was interviewed in Oct 2024. There were 2 interview rounds.
Aptitude exam was about time, distance, verbal reasoning, work, and all. It was easy.
A SWAP program exchanges the values of two variables without using a temporary variable.
Use XOR operation to swap two variables without using a temporary variable.
Example: a = 5, b = 10. After swapping, a = 10, b = 5.
Ensure to handle cases where the variables are the same.
I applied via Job Fair and was interviewed in Jul 2024. There were 2 interview rounds.
Electronic courses, aptitude,
english
I applied via Approached by Company and was interviewed in Dec 2023. There were 2 interview rounds.
Any work in the office submit the Electronic and divice then useing the projects and discussion in the office submit the correct time Boss
Good and bit tough but we can cope up with
Good and has to tell more points
I applied via Walk-in and was interviewed in Jul 2023. There were 3 interview rounds.
Are you like online or offline shopping
I applied via LinkedIn and was interviewed in Jul 2021. There were 3 interview rounds.
Basic of electronic
I applied via Naukri.com and was interviewed before Jun 2022. There were 4 interview rounds.
Aptitude test and code test is there for and need to pass
Inheritance is a concept in object-oriented programming where a class can inherit attributes and methods from another class.
Inheritance allows for code reusability and promotes a hierarchical relationship between classes.
There are different types of inheritance such as single inheritance, multiple inheritance, multilevel inheritance, and hierarchical inheritance.
Example: Class B inheriting from Class A - 'class B exten...
Polymorphism is a concept in object-oriented programming where a single function or method can operate on different types of data.
Polymorphism allows for flexibility and reusability in code
There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding)
Example: a function that can calculate the area of different shapes (circle, square, triangle) based on the input type
A class is a blueprint for creating objects in object-oriented programming.
Classes define the properties and behaviors of objects.
To create a class, use the 'class' keyword followed by the class name and curly braces.
Inside the class, you can define attributes (variables) and methods (functions).
Example: class Car { String color; void start() { //code here } }
Data types are classifications that specify which type of value a variable can hold.
Data types include integers, floating point numbers, characters, strings, and booleans.
Examples of data types are int (for integers), float (for floating point numbers), char (for characters), and bool (for booleans).
Join in SQL is used to combine rows from two or more tables based on a related column between them.
Join is used to retrieve data from multiple tables based on a related column
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN
Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column
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